I had recently used Wenham's Elements of NT Greek as an undergraduate, but I was keen to maintain my facility in reading the NT, consequently, I thought that even though I would be buying the same edition of the Elements, it would be worthwhile to get the two extras. One extra is called Syntax Lists for Students of NT Greek; this is highly to be praised, and a must for the serious student. I am glad to see that, unlike Wenham, it does not shy away from the three accents. The other extra produced by Cambridge University Press is the Audio CD containing the Vocabulary Words in Wenham; to my deep dismay, the sounds emanate from an American and thus are completely worthless for an Englishman. Overall, the set is not expensive. If you are English, you can discard the CD and still have good value in the two books.